redgpu/raygpu: Simple & Portable Graphics Library

examples/shaders_glsl.cpp
63 строки2 KB
manuel
Big enum rename
22 авг 2025, 16:48
22 авг 2025, 16:485c40f84
#include <raygpu.h>
#include <source_location>


struct A{
    int b;
};
const char vertexSourceGLSL[] = R"(
#version 450
layout(location = 1) in vec2 position;

void main() {
    gl_Position = vec4(position, 0, 1);
}
)";
const char fragmentSourceGLSL[] = R"(
#version 450
layout(binding = 5) uniform color {
    vec4 colorval;
};

layout(location = 0) out vec4 fragColor;
layout(location = 1) out vec4 fragColor2;

void main() {
    fragColor = colorval;
    fragColor2 = vec4(1, 0, 0, 1);
}
)";
int main(){
    InitWindow(800, 800, "Shaders example");
    RenderTexture multi = LoadRenderTextureEx(800, 800, PIXELFORMAT_UNCOMPRESSED_B8G8R8A8, 1, 2);
    Shader colorInverter = LoadShaderFromMemory(vertexSourceGLSL, fragmentSourceGLSL);

    Matrix matrix = ScreenMatrix(GetScreenWidth(), GetScreenHeight());
    Matrix identity = MatrixIdentity();
    DescribedBuffer* matrixbuffer = GenUniformBuffer(&matrix, sizeof(Matrix));
    DescribedBuffer* matrixbuffers = GenStorageBuffer(&identity, sizeof(Matrix));
    
    Texture tex = LoadTexture(TextFormat("%s/tileset.png", FindDirectory("resources", 3)));
    DescribedSampler sampler = LoadSampler(TEXTURE_WRAP_REPEAT, TEXTURE_FILTER_BILINEAR);

    float vertices[6] = {0,-0.5,-0.5,0.5,0.5,0.5};
    DescribedBuffer* buffer = GenVertexBuffer(vertices, sizeof(vertices));
    VertexArray* vao = LoadVertexArray();
    VertexAttribPointer(vao, buffer, 1, WGPUVertexFormat_Float32x2, 0, WGPUVertexStepMode_Vertex);
    EnableVertexAttribArray(vao, 0);
    float color[4] = {1,1,0,1};
    SetPipelineUniformBufferData(colorInverter.id, 5, color, sizeof(color));
    while(!WindowShouldClose()){
        BeginDrawing();
        ClearBackground(BLACK);
        BeginTextureAndPipelineMode(multi, colorInverter.id);
        BindVertexArray(vao);
        DrawArrays(RL_TRIANGLES, 3);
        EndTextureAndPipelineMode();

        //DrawTexturePro(multi.texture, Rectangle{0,0,800,800}, Rectangle{0,0,800,800}, Vector2{0,0}, 0.0f, WHITE);
        DrawTexturePro(multi.moreColorAttachments[0], Rectangle{0,0,800,800}, Rectangle{0,0,800,800}, Vector2{0,0}, 0.0f, WHITE);
        DrawFPS(5, 5);
        EndDrawing();
    }
}